[sdiy] SSM chip reissue

[Tom Wiltshire]

SSM2044 is designed as a lowpass-only chip, yes.

That's not to say you couldn't start tapping differential signals from the caps and build a pole-mixing filter with it like Oberheim did with the CEM3372 (also "lowpass only") but it would use a lot of parts and it's much easier to start with something like the SSM2164 if that's the purpose.

Talking of which, why not use the 2164 instead of the CA3280? You can use it for filters, VCAs, and VCOs, and it's got the exponential reposnse built in, unlike the CA3280.

Tom

On 23 Apr 2017, at 19:17, "Jay Schwichtenberg" <jschwich53 at comcast.net> wrote:

> I'm not familiar with the original chip and from the data sheet they only show a low pass implementation. Does this chip only support low pass?
>  
> If people are doing old chips I'd like to see a super CA3280 made. You can use CA3280s for filters, vcas and vcos verses having special chips for those functions.
>  
> Jay S.
>  
> From: Synth-diy [mailto:synth-diy-bounces at synth-diy.org] On Behalf Of Justin Herrmann
> Sent: Saturday, April 22, 2017 10:06 PM
> To: synth-diy at synth-diy.org
> Subject: [sdiy] SSM chip reissue
>  
> Apparently some SSM chips are going to be released, new and improved, so to speak:http://www.matrixsynth.com/2017/04/ssm-chip-production-to-return-as-ssi.html?m=1
> 
> Justin
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